Companies line up to deliver Turkey hundreds of micro drones

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  29 avril 2021 | International, Aérospatial

  USAF Logistics Chief Raises Urgent Warning On Surge Capacity | Aviation Week Network

  A recent internal study shows more than nine out of 10 repairs performed by the defense industry on U.S. Air Force aircraft are by a sole-source vendor, the service’s top logistics official said on April 28.

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  27 avril 2020 | International, Aérospatial

  Five F-35 issues have been downgraded, but they remain unsolved

  By: Aaron Mehta , Valerie Insinna , and David B. Larter WASHINGTON — The F-35 Joint Program Office has put in place stopgap fixes for five key technical flaws plaguing America's top-end fighter jet, but the problems have not been completely eliminated. Last June, Defense News reported exclusive details about 13 major technical issues, known as category 1 deficiencies, impacting the F-35. The JPO has since quietly downgraded five of those issues to the lesser category 2. A category 1 deficiency is defined as a shortfall that could cause death, severe injury or illness; could cause loss or damage to the aircraft or its equipment; critically restricts the operator's ability to be ready for combat; prevents the jet from performing well enough to accomplish primary or secondary missions; results in a work stoppage at the production line; or blocks mission-critical test points. In comparison, a category 2 deficiency is of lesser concern — something that requires monitoring, but not something that should impact operations. But downgrading the category doesn't mean the problems are solved, said Dan Grazier, who tracks military issues for the Project on Government Oversight. CAT 2 programs are still "definitely cause for concern. They are going to have an impact on how the aircraft performs,” Grazier said. "It really depends on what the issue is, but every design flaw has a potential issue on the mission. ... You want to not have flaws, you want these things can be fixed so pilots can get out and do what they need to do.” Aside from a few basic statements on which projects were downgraded to CAT 2, a JPO spokesperson said the office “cannot disclose any information about how these deficiencies were resolved or downgraded due to their security classification.” The ALIS sovereign data transfer solution does not meet information assurance requirements. The Autonomic Logistics Information System, or ALIS, provides the backbone of the F-35, used by the aircraft's operators in virtually all stages of flying and sustaining the Joint Strike Fighter. The system is used to plan and debrief missions, order spare parts, walk maintainers through repairs, and view technical data and work orders. (A potential replacement, named ODIN, is in the works.) But some international partners on the F-35 program have expressed concerns that data flowing through ALIS to the United States government — and to Lockheed Martin — could give both the U.S. military and the American defense contractor a window into that country's flight operations, including when and where its F-35s are flying. Those concerns were so high that two countries threatened to leave the program entirely if a fix was not quickly applied, according to the original documents viewed by Defense News. That fix is now in, according to the JPO, which said that on April 29, 2019, an update to ALIS included an initial version of a new Sovereign Data Management tool. “The SDM tool permits F-35 operators more control over the types of Prognostics and Health Management (PHM) data that are transferred to the F-35 Operations Center,” the JPO said. Incorrect inventory data for complex assemblies continues to result in grounding conditions. This particular deficiency involves supplies or components that, upon installation, are not actually listed and tracked in ALIS as designed. Those require specific, almost daily requests to software engineers to have data corrected in the system. While those requests can catch some problems, the issue is not always detected by the user. These “holes,” as the JPO calls them, do not collect data on how parts are used after installation, which means a part might be breaking down from heavy use. Yet, that part won't be flagged by ALIS as an at-risk piece. As a result, it's less likely that issues developing from wear and tear or a lack of replacement parts will be discovered until such an issue has become an acute problem, possibly leading to a grounding of the aircraft. The issue was downgraded to a CAT 2 deficiency on Jan. 13, 2020, “due to ALIS data quality improvements that have been made in the two years since this DR [deficiency report] was written,” according to the JPO. “The quality improvements have reduced the frequency and magnitude of issues that have impacted operational units' abilities to quickly release aircraft for flight following maintenance.” The F-35B and F-35C experienced incongruous lateral and longitudinal control response above a 20-degree angle of attack. One of the most eye-opening issues identified in the initial report was that the F-35B and F-35C models used by the Marine Corps and Navy become difficult to control when operating above a 20-degree angle of attack — which would be seen in the extreme maneuvers a pilot might use in a dogfight or while avoiding a missile. Pilots reported the aircraft experiencing unpredictable changes in pitch, as well as erratic yaw and rolling motions when coming in at that angle of attack.. “It has random oscillations, pitch and yaw issues above [its] 20-[degree angle of attack]," a longtime naval aviator told Defense News last year. "[So] if I had to perform the aircraft — if I had to maneuver to defeat a missile, maneuver to fight another aircraft, the plane could have issues moving. And if I turn around aggressively and get away from these guys and use the afterburner, [the horizontal tail and tail boom] start to melt or have issues.” The issue was important enough that it accounted for two CAT 1 issues, one each for the two variants impacted by the design issue. However, the JPO downgraded this issue to a CAT 2 on May 28, 2019, for the F-35C and on July 8, 2019, for the F-35B. The solution involves “improvements in flying qualities that were implemented in software. The improvements provide pilots with an intuitive reference indication for AOA [angle of attack], which allows pilots to more quickly optimize lateral maneuvering during air-to-air maneuvering. These software improvements have been released to all F-35 operators.” There were unanticipated thrust limits in jetborne flight on hot days. This particular issue only occurred once, but was so significant that it was identified in the original document as the “No. 1 priority” for the Marine Corps. The issue was identified aboard the amphibious assault ship Essex, where a Marine pilot performed what is known as a “mode four” operation. That is where the jet enters hover mode near a landing spot, slides over to a target area and then vertically lands onto the ship. It's a key capability for the "B" model, which was designed for its short-takeoff-and-vertical-landing abilities. The engine — working hard on a day that temperatures cracked 90 degrees Fahrenheit while trying to lift a plane that was heavier than most returning to base — wouldn't generate the needed thrust for a safe, ideal landing. The pilot managed to land, but the issue set off alarm bells in the Marine aviation community. The JPO initially expected a fix for this issue to be out sometime in 2019, but it wasn't until March 2020 that a mix of nondescript “software updates and procedural adjustments” brought the “propulsion system performance back to original specified performance levels.” https://www.defensenews.com/smr/hidden-troubles-f35/2020/04/24/five-f-35-issues-have-been-downgraded-but-they-remain-unsolved/

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  15 février 2020 | International, C4ISR, Sécurité

  Germany moves to protect its military-cyber industry

  Sebastian Sprenger MUNICH — A new German strategy document declares defense-related cyber technologies as key national assets, affording the domestic sector some protection from international competition. Government officials made the move with the publication of a paper this week outlining the types of technology Berlin wants to buy at home, in Europe or from global vendors. The designation of a key technology means the government can sidestep European Union rules requiring public acquisitions be open to companies throughout the bloc. The areas of artificial intelligence, electronic warfare, networked operations and cryptology, and defense-related information and communications technology are in the category deemed so crucial to national security that the government wants to keep the sector healthy. “A technological challenge for our security and defense lies in the area of digitalization and artificial intelligence,” read the strategy document, issued by the Ministry for Economic Affairs and Energy. “Maintaining cybersecurity is the prerequisite for the digital advancement of the state, the economy and society, and it is equally important for the sovereignty of Germany and Europe,” it added. The new designation of cyber technologies as worthy of special protection sets up a delicate dance between maintaining a national industrial ecosystem while remaining true to the idea of a European Union with a single market. German Defence Minister Annegret Kramp-Karrenbauer said her agency remains focused on cyber capabilities from a European perspective. For example, officials are working to ensure the relevant U.K. authorities remain plugged into EU networks after Brexit. The bloc, she said, must increase its cooperation on cyber issues, or risk falling behind China and the United States, Kramp-Karrenbauer said at the Munich Security Conference on Thursday. Germany's contributions to the NATO Very High Readiness Joint Task Force drives the country's plans for fielding a new information backbone for the land forces of the Bundeswehr, she said. In that context, officials have begun studying new approaches to managing the electricity required to power new communications kit on the battlefield, the minister added. It remains to be seen how the government will use the new strategy document on key national technologies to make investment decisions, said Matthias Wachter, a defense analyst with the Federation of German Industries, or BDI. For example, the stated domestic preference in electronic-warfare technology will be put to the test with the Air Force's upcoming buy of new aircraft for electronic warfare, Wachter said. In the running are the Airbus-made Eurofighter as a local option and the Boeing F-18 Growler from the United States. “There is nothing legally binding” in the new document, the analyst said, which means the decision could go either way. “But if you take the paper seriously, the Growler would be out.” https://www.fifthdomain.com/smr/munich-security-conference/2020/02/14/germany-moves-to-protect-its-military-cyber-industry/